@ Saintdeby dont worry. I have done a discriptive analaysis on the current rules as stipulated check the website (pdf) http://travel.state.gov/pdf/DV_2014_Instructions.pdf . Check page 14 paragraphy one;The countries whose natives are not eligible for the DV program (because they are the principal source countries of Family-Sponsored and Employment-Based immigration or “high-admission” countries) are noted after the respective regional lists. The countries whose natives are not eligible for the DV-2014 program were identified by USCIS, according to the formula in Section 203(c) of the INA. Check USCIS section 203(c) http://www.uscis.gov/portal/site/uscis/menuitem.f6da51a2342135be7e9d7a10e0dc91a0/?vgnextoid=fa7e539dc4bed010VgnVCM1000000ecd190aRCRD&vgnextchannel=fa7e539dc4bed010VgnVCM1000000ecd190aRCRD&CH=act

You will see that the 50,000 minimuim immgration influx is measured strictly on those countries whos citizens entered into US thru employment based immigration and family sponsored immigration not DV lottery entrance . So evendo Nigerian immigration into the united states has surpassed the minimuim entrance of 50,000 in the last five year. mind you that those migration werent due to family sponsored immigration or emploment migration rather mainly due to DV Visa.

So unless new laws comes in place Nigeria will still be eligibke for dv 2015 All the best